It's Easter bank holiday week, so to help you while away the time on those extra free days off, what could be better than tackling your 10 biggest bills? (Please don't answer that.) We make no apology that regular MoneySavers may know all this as our aim is to help those who aren't always super diligent. (PS: No animals were hurt in the writing of this.)

1. Pay just £10/mth for broadband AND line. Many fork out up to £45/mth for the slowest broadband speeds. Yet hot, short-lived promos can help you dramatically slice costs - and right now many deals give you broadband for less than BT standard line rent.
   
   For standard broadband and line, Plusnet is equiv £10.24/mth. For faster fibre, Vodafone starts at equiv £18.89/mth. Check our Broadband Unbundled tool for loads more deals.
   
   
2. Drive down petrol costs by a third. Fuel is up nearly 20p a litre over the last three years. A nifty tool finds the cheapest petrol station near you which can cut costs by 10%+, but a few simple tips to make your car and your driving more efficient can help you to slash costs. See our same speed, less fuel tips. 
   
   

3. British Gas customer? Slash £300+/yr off typical bills WITHOUT switching firm. Energy prices rose by 10% at the start of the month for about 11m households on Big 6 standard tariffs. Yet at the same time as the hikes, the biggest firm of the lot launched its British Gas Energy Plus Boiler Cover April 2020 tariff, which is £300/yr cheaper for someone with standard bills. It's only available via comparison sites (the link above takes you to ours).

   - Not with British Gas? Others can still save £100s/yr. Just do a comparison and see if there are huge savings too. Use our Cheap Energy Club.

4. Save £1,000s on council tax. Typical bills are over £1,000s a year, but many have been overpaying. Here are the key ways to cut back.
   
   - Are you in the wrong council tax band? Up to 400,000 are, so use our council tax check and challenge system to see if you're one of them. If so, you can reclaim all overpayments from past years too. Karen emailed: "I queried our band, and we've been given a £6,300 refund, plus our monthly charge is now around £45 less. Thank you so much."
   
   - Are you the only grown-up in the home? If so, you're entitled to the 25% off single person reduction.
   
   - Can you get a 'Severely Mentally Impaired' discount? Our full Severely Mentally Impaired council tax help will show you if you're eligible and how to claim.
   
   - Moved home since 1993? Check if you're owed council tax credit.  

5. Cut £1,000s off your mortgage. Some 2m pay far too much by sticking with their lender's standard variable rate (SVR) - which most fixed or discount deals revert to when over.
   
   On a £150,000 mortgage, you could save £6,000 over 2yrs by switching from an avg 4.9% SVR to the best 2yr fix. What's more, 5yr mortgages are at their cheapest levels in 18mths. Read the MSE Remortgage Guide for help picking a deal and use our Mortgage Best Buys tool to unearth the best rates.

6. Pay credit card interest? Take 2mins to see if you can cut it to 0%. A balance transfer card repays debts on old cards for you, so you owe it instead, but at 0% for up to 29 months. The problem is being accepted, so find the cards most likely to accept you with our eligibility calculator.
   
   This can really slash your interest, as Hayley discovered: "I finally got off my backside and did a balance transfer. Thanks to @MartinSLewis and @MoneySavingExp for making it so easy. Here's to saving £300/yr." 

7. Can you save up to £500/yr switching to a water meter? You can't switch supplier to save, but some may be better off with a water meter.
   
   Martin's rule of thumb is: "If there are more or the same number of bedrooms in your home than people, it's definitely worth checking." See our Cut your water bills guide, which includes links to easy calculators.
   
   Umesh tweeted: "Best decision I made to swap to a water meter. Should have done it 10 years before. Saved at least £500+/yr. @MartinSLewis."

8. 34 ways to cut your supermarket bills. It's not a bill in the traditional sense, which is almost a shame. If, instead of paying £100/week, you got a one-off annual demand for £5,000, it'd probably fire you up even more to slash costs.
   
   To help, we've 34 Supermarket Tips incl how to max discounts and play the Downshift Challenge by going a brand level lower, sometimes with little taste difference. James saved: "@MartinSLewis, just took the MSE Downshift Challenge and cut the weekly shop from £133 to £89."    
   
   
9. Cut £100s off car and home insurance. Insurers rely on people's laziness to jack up renewal prices, so always compare before you renew. Our research shows the perfect time to do that is 21 days before renewal - it can make a huge difference, as Simon told us: "Got a car insurance quote 21 days before renewal and saved over £1,000. Thank you. #martinlewis". Full help in our Cheap Car Insurance and Cheap Home Insurance guides, but in brief:
   
   (i) Use comparison sites to check dozens of insurers in mins - but they don't all cover the same providers, so check a few. Our current orders are...
   
   Car insurance: MoneySup*, Confused*, Gocompare* & CTM*.
   Home insurance: MoneySup*, Confused*, CTM* & Gocompare*.
   
   (ii) Biggies Direct Line* & Aviva* aren't on comparisons, so try 'em.
   
   (iii) Check hot car insurance deals comparisons miss, which incl a £60 M&S vch. Then check hot home insurance deals comparisons miss, incl a £65 Amazon vch.
   
   

10. How to pay '£7/mth' for your mobile. If out of contract, happy with your handset and you've had your Sim a while, you can probably slash costs as prices have dived in recent years. This week has seen a flurry of great offers, so we've a full round-up a bit further below.